PGA309EVM-EU

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The PGA309EVM-EU is an evaluation and demonstration board and kit from Texas Instruments, designed to support the PGA309 - a high-speed, ultra low power, integrated signal conditioner for ultrasonic and low-frequency applications. This evaluation and demonstration board and kit is used to evaluate the features of the PGA309 Audio Amplifier and to demonstrate its performance in different application fields. It can be used to evaluate the performance of ultrasonic transducers, low-frequency and audio signal conditioning circuits, system integration, and application control.

The PGA309EVM-EU provides a comprehensive hardware environment that allows users to evaluate, demonstrate, and test the performance of the PGA309 amplifier. It is equipped with a PGA309 a programmable signal conditioning IC and a variety of components and connectors to provide the necessary support for device evaluation. The evaluation board also includes an Octal-channel sequencer, a pair of digital potentiometer, two switchable connectors for voltage input and output, a LED indicator, and a speaker. It also features a built-in USB interface for programming and controlling the device from a PC.

The PGA309EVM-EU evaluation and demonstration board supports two- or four-channel configurations and can be used to evaluate the performance of a wide variety of audio systems. Two pins of each channel are connected directly to the PGA309 IC, while the other two are connected to two corresponding pushbuttons. The user can connect devices such as ultrasonic transducers and microphones to input and output signals, enabling the device to evaluate the performance of the PGA309 in different application fields.

The PGA309 is a programmable amplifier that comprises three selectable gain range- low, medium, and high. The gain setting, frequency response, and transition bandwidth can be configured using the Octal-channel sequencer. The PGA309 can be programmed to operate in different modes, such as single-ended, differential, and bridge. Additionally, the board features a high-voltage input buffer, a low-voltage output buffer, and a switchable voltage attenuator. The user can configure the PGA309 for a single-oscillator, dual-oscillator, or four-oscillator operations.

The PGA309EVM-EU also provides an adjustable microphone preamplifier and a variable low-pass filter. The preamplifier supports low-noise, low-impedance microphones, providing a maximum gain of 35 dB. The filter allows the user to adjust the corner frequency, gain, and attenuation. Additionally, the device supports two potentiometers, a pair of digital potentiometers, and two external switches for controlling the gain of the preamplifier and the filter.

Finally, the PGA309EVM-EU includes a circuit diagram showing all of the connections on the board. The schematic and associated components can be used to construct various types of ultrasonic and task-specific analog applications. The board also features a USB interface that facilitates communication between the user and the device. Additionally, the board includes software and programming files for prototyping and evaluating the features of the PGA309.

In conclusion, the PGA309EVM-EU is an evaluation and demonstration board and kit that allows users to evaluate and demonstrate the performance of the PGA309 signal conditioning IC. It is equipped with all the necessary components for evaluation, including Octal-channel sequencer, a pair of digital potentiometer, two switchable connectors for voltage input and output, a LED indicator, and a speaker. Moreover, it includes a microphone preamplifier and a low-pass filter for evaluating the performance of the PGA309 in different application fields. Finally, the board includes circuit diagrams and accompanying software for developing and testing analog audio and ultrasonic applications.

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